<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>footer</title>
</head>
<body>
<div id="footer">666</div>
<style>
    #footer{
        width: 100px;
        height: 100px;
        background: green;
    }
</style>
<script src="../js/footer.js"></script>
</body>
</html>
